Since 2003, Peter Hunt has developed PDW to the most important (free!) application to monitor POCSAG and FLEX. PDW has many users worldwide, from radio enthusiasts to professionals. Peter, thank you for all your efforts!
It has been decided recently to make PDW available as open source software. This enables others e.g. to enhance the functionality, or to develop a Linux version.
I have received the PDW source code from Peter. It will soon come online. Keep you posted!
-Rene